Dental clamp.



J. A. SAWHILL. DENTAL CLAMP. APPLICATION FILED PBB.21, 1913.

1,101,885. 1 Patented June 30,1914,

WI T IVE SSES: IN VEN TOR 11 4. Saw/W71 M @4 By A TTOH/VEY COLUMBIAPLANOGRAPH 0., WASHINGTON, D. C-

UTNITED STATES PATENT OFFICE.

JOHN A. SAWI-IILL, OF KANSAS CITY, MISSOURI.

DENTAL CLAMP.

To all whom it may concern Be it known that I, JOHN A. SAWHILL, acitizen of the United States,'residing at Kansas City, in the county ofJackson and State of Missouri, have invented certain new and usefulImprovements in Dental Clamps; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

My invention relates to dental apparatus, and has for its principalobject to-provide a device for retarding the flow of saliva in apatients mouth while adental operation is being performed, and moreparticularly to provide a clamp which may be easily and quickly appliedto or removed from the mouth, and which, when in place, Will so coverthe parotid or sublingual ducts as to retard the flow of saliva andthereby facilitate the dental operation,

In accomplishing this object I have provided certain improved details ofstructure, the preferred forms of which are illustrated in theaccompanying drawings, wherein Figure I is aperspective view of a clampconstructed according to my invention, showing its application to theduct from the parotid gland. Fig. II is a cross section of the clampcups and side elevation of the spring. Fig. III is an elevation of aform of clamp more particularly adapted for use in connection with thesublingual duct, the clamp cups being in transverse section. Fig. IV isa plan view of the latter form of clamp illustrating the pivotalmovement of the spring on the cup.

Referring more in detail to the parts 1 designates a spring upon whichthe clamp cups are carried, and which preferably comprises a centralcoil 2 for providing the resiliency and the arms 3 upon which the clampcups 4 and 5 are mounted, the cup 5, which is adapted for application tothe inside of the mouth, having its edges 6 turned back to form a smoothsurface 7 Specification of Letters Patent.

Application filed February 21, 1913.

I Patented J line 30, 1914.

Serial No. 750,001.

which will not injure the mouth. The outer cup 5 may be concaved, asillustrated, although this construction is not important, as the cup orplate would be of suiiicient thickness to obviate injury to the'patients mouth.

In the form particularly adapted for use in connection with thesublingual duct, I prefer to provide each of the clamp cups with asocket 8, and the ends of the clamp springs with balls 9 which areanchored within the sockets on the cups and are adapted to turn therein,so that the clamp spring may be projected from either side or from thefront of the mouth so as not to interfere with the operator.

It is readily apparent that with the clamp the cup 5 will cover the ductand prevent the flowof saliva into the mouth, so that the work beingdone may be kept dry, and

that by having the inner cup concaved and provided with the back-turnededges, as illustrated, there is no tendency to injure the duct or thepart of the mouth engaged by the cup.

Having thus described my invention, what I claim as new therein, anddesire to secure by Letters-Patent, is 2- 1. In a dental clamp, acarryin member comprising spring arms having ee outer ends, and facingcups having their backs secured to the spring arms and having beadededges for the purpose set forth.

2. A dental clamp comprising a body member having arms, and cuppedplates pivotally mounted on the free ends of said arms.

8. A dental clamp comprising plates, each having a socket thereon, and abody member provided with spring arms having balls on their free endspivotally mounted in the sockets in said plates, for the purpose setforth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN A. SAWI-IILL.

Witnesses:

Lnwrs L. MILLER, LETA E. COATS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

